CN218443325U - Air cooling joist - Google Patents

Abstract

The application discloses air cooling joist is applied to a belt roasting machine furnace mantle partition wall, includes: a joist body; one end of the first air port pipeline is hermetically connected with one end of the joist body, and the other end of the first air port pipeline is connected with the process air box; one end of the second tuyere pipeline is hermetically connected with the other end of the joist body, and the other end of the second tuyere pipeline extends to the outside of the travelling grate roaster; the protection mechanism is arranged on the outer side of the outer circumference of the joist body, and the length of the protection mechanism is greater than the width of the belt type roasting machine; and the supports are fixedly arranged at the bottoms of the two ends of the joist body and are fixedly connected with the furnace wall of the travelling grate. The application provides an air cooling joist can solve the technical problem that current belt roasting machine furnace mantle partition wall collapses to a certain extent.

Description

Air cooling joist

Technical Field

The application belongs to the technical field of metallurgical industry furnace mantle equipment, concretely relates to air cooling joist.

Background

At present, the process segmented partition wall structure of the belt type roasting machine adopts a partition wall form that a lower water-cooling joist supports refractory bricks or an upper steel structure beam hangs refractory bricks. Because the working temperature in the furnace cover of the belt type roasting machine is higher, particularly the temperature in the roasting section and the soaking section can reach 1350 ℃ at most, the water-cooling joist which works in the severe environment for a long time has the problems of corrosion and water leakage, and the hanging refractory bricks of the steel structure beam has the problems of foreign matters or abnormal material surface collision or partition wall scraping, thereby leading the partition wall to collapse. Meanwhile, the steel structure beam under long-term bearing is easy to bend and deform, and the refractory bricks are thermally expanded, so that the lower bed of the partition wall even falls off, and the belt type roasting machine is forced to stop production and maintain.

SUMMERY OF THE UTILITY MODEL

The technical problem that the furnace hood partition wall of the existing belt type roasting machine collapses can be solved to a certain extent at least. Therefore, the application provides an air cooling joist.

The technical scheme of the application is as follows:

the application provides an air cooling joist is applied to a belt roasting machine furnace mantle partition wall, includes:

a joist body;

one end of the first air port pipeline is hermetically connected with one end of the joist body, and the other end of the first air port pipeline is connected with the process air box;

one end of the second air port pipeline is hermetically connected with the other end of the joist body, and the other end of the second air port pipeline extends to the outside of the travelling grate;

the protection mechanism is arranged on the outer side of the outer circumference of the joist body, and the length of the protection mechanism is greater than the width of the belt type roasting machine;

and the supports are fixedly arranged at the bottoms of the two ends of the joist body and are fixedly connected with the furnace wall of the travelling grate roaster.

Furthermore, the first air port pipeline is formed by connecting a plurality of ventilation pipelines in a transition fit manner;

the second air port pipeline is formed by excessively matching and connecting a plurality of ventilation pipelines.

Furthermore, the first air inlet pipeline is formed by connecting four ventilation pipelines in a transition fit manner;

the second air port pipeline is formed by connecting four ventilation pipelines in a transition fit mode.

Further, the four ventilation ducts differ in curvature and length.

Further, a ball valve is arranged at one end of the second tuyere pipeline, which extends to the outside of the straight grate roaster.

Further, the guard mechanism includes:

the first protective layer is arranged on the outer circumference of the joist body and is formed by welding four angle steels, and the support is arranged at the bottoms of two ends of the first protective layer;

and the second protective layer is arranged at the periphery of the first protective layer.

Further, the length of the angle steel is larger than the width of the straight grate, and the angle steel is boiler steel or stainless steel.

Further, the guard mechanism further comprises:

and a plurality of rows of anchoring hooks are uniformly and vertically arranged on the outer surface of the first protective layer.

Further, the second protective layer comprises:

the fiber felt is arranged on the periphery of the first protective layer and is paved on the anchoring hook;

a refractory layer disposed on the fiber mat.

Further, the holder may be fixed to the furnace wall of the straight grate type roasting machine by bolting or welding.

The embodiment of the application has at least the following beneficial effects:

1. by adopting the mechanism design of the protection mechanism, the corrosion of high-temperature gas to the joist is isolated to a great extent, and the joist is prevented from being damaged by high temperature;

2. the application provides an air cooling joist is through adopting first wind gap pipeline and technology bellows intercommunication, and the second wind gap pipeline accesss to the outside structural design of roasting machine for gas or coming from the technology bellows and discharging to the roasting machine outside or come from the roasting machine outside air and discharge to the technology bellows in the air cooling joist, need not to singly establish the fan, and the air cooling joist passes through gas cooling, has guaranteed the structural safety of air cooling joist.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of an air-cooled joist according to an embodiment of the present application;

fig. 2 isbase:Sub>A cross-sectional view taken along planebase:Sub>A-base:Sub>A of the structure shown in fig. 1.

Reference numerals: 1-joist body; 2-a first tuyere conduit; 3-a second tuyere conduit; 4-support; 5-the furnace wall; 6-ball valve; 7-a first protective layer; 8-anchoring hooks; 9-fiber felt; 10-a refractory layer; 11-bolt.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The application is described below with reference to specific embodiments in conjunction with the following drawings:

example one

The embodiment of the application provides an air cooling joist, is applied to a belt roasting machine furnace mantle partition wall, combines fig. 1, and this air cooling joist includes:

the supporting beam comprises a supporting beam body 1, a first air port pipeline 2, a second air port pipeline 3, a protection mechanism and a support 4, wherein the supporting beam body 1 is a steel pipe, the pipe diameter is determined according to the load bearing condition and the cooling capacity of the supporting beam, one end of the first air port pipeline 2 is hermetically connected with one end of the supporting beam body 1, the other end of the first air port pipeline is connected with a process air box, and the first air port pipeline 2 is formed by connecting a plurality of ventilation pipelines in a transition fit mode. One end of the second air port pipeline 3 is hermetically connected with the other end of the joist body 1, the other end of the second air port pipeline extends to the outside of the belt type roasting machine, and the second air port pipeline 3 is formed by connecting a plurality of ventilation pipelines in a transition fit mode. The protection mechanism is arranged on the outer side of the outer circumference of the joist body 1, and the length of the protection mechanism is greater than the width of the belt type roasting machine; the support 4 is fixedly arranged at the bottom of the two ends of the joist body 1 and is fixedly connected with the furnace wall 5 of the travelling grate.

In the embodiment of the present application, as shown in fig. 1, in order to meet the requirement of field installation, the first tuyere pipe 2 is formed by connecting four ventilation pipes with different curvatures and lengths in an excessively matched manner; the second tuyere pipe 3 is formed by excessively matching and connecting four ventilation pipes with different curvatures and lengths. One end of the second tuyere pipe 3 extending to the outside of the belt type roasting machine is provided with a ball valve 6 for adjusting the air quantity in the second tuyere pipe 3.

In the embodiment of the present application, as shown in fig. 1 and fig. 2, the protection mechanism includes:

the first protective layer 7 is arranged on the outer circumference of the joist body 1 and is formed by welding four angle steels, the length of each angle steel is larger than the width of the belt type roasting machine, and each angle steel is boiler steel or stainless steel. The pedestals 4 are provided at the bottom of both ends of the first protective layer 7. A plurality of rows of anchoring hooks 8 are uniformly and vertically arranged on the outer surface of the first protective layer 7. The second protective layer is provided at the periphery of the first protective layer 7.

Further, as shown in fig. 2, the second protection layer includes: the fiber felt 9 is arranged on the periphery of the first protective layer 7 and is laid on the anchoring hooks 8, and the fire-resistant layer 10 is arranged on the fiber felt 9 to form a composite masonry layer, so that erosion of high-temperature gas to the joist is isolated.

Further, the support 4 may be fixed to the furnace wall 5 of the straight grate by bolting or welding. Referring to fig. 1, in the embodiment of the present invention, the support 4 is fixed to the furnace wall 5 of the straight grate through bolts 11 and nuts.

When the air cooling joist provided by the embodiment of the application is applied, the concrete operation is as follows:

step S1: the first tuyere pipeline 2 is hermetically connected with one end of the joist body 1;

step S2: the second tuyere pipeline 3 is hermetically connected with the other end of the joist body 1;

and step S3: welding four angle steels on the outer circumference of the joist body 1 to form a first protective layer 7;

and step S4: welding a plurality of rows of anchoring hooks 8 on the outer surface of the first protective layer 7, then laying a layer of fiber felt 9, and pouring a layer of fire-resistant layer 10 to form a second protective layer;

step S5: the air-cooled joist is fixed on the furnace wall 5 of the straight grate type roasting machine through the supports 4 at the bottoms of the two ends of the joist body 1, the other end of the first air port pipeline 2 is connected with the process air box, and the other end of the second air port pipeline 3 extends to the outside of the straight grate type roasting machine;

step S6: when the process air box is in positive pressure, gas in the joist body 1 is directly discharged to the outside of the roasting machine through the second air port pipeline 3, when the process air box is in negative pressure, air outside the roasting machine is introduced through the second air port pipeline 3 and then is conveyed to the process air box through the joist body 1 and the first air port pipeline 2 in sequence, and the air volume in the second air port pipeline 3 can be adjusted through the ball valve 6 on the second air port pipeline 3.

The embodiment of the application has at least the following beneficial effects:

1. by adopting the mechanism design of the protection mechanism, the corrosion of high-temperature gas to the joist is isolated to a great extent, and the joist is prevented from being damaged by high temperature;

2. the application provides an air cooling joist is through adopting first wind gap pipeline 2 and technology bellows intercommunication, and second wind gap pipeline 3 accesss to the outside structural design of roasting machine for gas or coming from the technology bellows and discharging to the roasting machine outside or coming from the roasting machine outside air and discharging to the technology bellows in the air cooling joist, need not singly to establish the fan, and the air cooling joist passes through gas cooling, has guaranteed the structural safety of air cooling joist.

3. The support 4 that this application embodiment provided can pass bolt coupling or welded fastening on oven 5, simple structure, simple to operate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" indicate orientations or positional relationships based on the orientation or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope claimed in the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air cooling joist is applied to a furnace hood partition wall of a belt type roasting machine, and is characterized by comprising:

a joist body;

one end of the first air port pipeline is hermetically connected with one end of the joist body, and the other end of the first air port pipeline is connected with the process air box;

one end of the second tuyere pipeline is hermetically connected with the other end of the joist body, and the other end of the second tuyere pipeline extends to the outside of the travelling grate roaster;

the protection mechanism is arranged on the outer side of the outer circumference of the joist body, and the length of the protection mechanism is greater than the width of the belt type roasting machine;

and the supports are fixedly arranged at the bottoms of the two ends of the joist body and are fixedly connected with the furnace wall of the travelling grate.

2. The air-cooled joist according to claim 1, characterised in that:

the first air inlet pipeline is formed by connecting a plurality of ventilation pipelines in a transition fit manner;

the second air inlet pipeline is formed by connecting a plurality of ventilation pipelines in a transition fit mode.

3. The air-cooled joist of claim 2, wherein:

the first air inlet pipeline is formed by connecting four ventilating pipelines in a transition fit manner;

the second air port pipeline is formed by connecting four ventilation pipelines in a transition fit mode.

4. The air-cooled joist according to claim 3, characterised in that:

the four ventilation ducts have different curvatures and lengths.

5. The air-cooled joist according to claim 4, characterised in that:

and a ball valve is arranged at one end of the second air inlet pipeline extending to the outside of the belt type roasting machine.

6. An air-cooled joist according to any one of claims 1 to 5, characterised in that the guard means comprises:

the first protective layer is arranged on the outer circumference of the joist body and is formed by welding four angle steels, and the support is arranged at the bottoms of two ends of the first protective layer;

and the second protective layer is arranged at the periphery of the first protective layer.

7. The air-cooled joist of claim 6, wherein:

the length of the angle steel is larger than the width of the travelling grate, and the angle steel is boiler steel or stainless steel.

8. The air-cooled joist of claim 6, wherein the guard mechanism further comprises:

and a plurality of rows of anchoring hooks are uniformly and vertically arranged on the outer surface of the first protective layer.

9. The air-cooled joist of claim 8, wherein the second protective layer comprises:

the fiber felt is arranged on the periphery of the first protective layer and is paved on the anchoring hook;

a refractory layer disposed on the fiber mat.

10. The air-cooled joist of claim 9, wherein:

the support can be fixed on the furnace wall of the straight grate type roasting machine through bolt connection or welding.

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